Home / 743,070.24-1,114,253.94-287,874.66

Finding the Fourth Proportional to 743,070.24, 1,114,253.94 and 287,874.66

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Solution

The fourth proportional to 743,070.24, 1,114,253.94 and 287,874.66 is: 431,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,070.24 : 1,114,253.94 = 287,874.66 : x
  2. Step 2: Convert to fraction form
    743,070.24/1,114,253.94 = 287,874.66/x
  3. Step 3: Cross multiply
    743,070.24x = 1,114,253.94 × 287,874.66
  4. Step 4: Simplify right side
    743,070.24x = 320,765,474,131.16
  5. Step 5: Solve for x
    x = 320,765,474,131.16/743,070.24
  6. Step 6: Final answer
    x = 431,675.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.